Perforating machine



oct- 5 E. G. PERFORMING 'MACHJQNE Filed Aug. 6, 194; 5 Sheets-Sheet 1 '{IHM llllll llllll llllll 9% Oct. 5 1943.

E. G. RIX 'PERFORATING MACHINE Filed Aug. 6. 1941 s Shets-Sheet 2 WM... w w v m w o w W 1943- v I .E. G. RIX 2,330,997

PERFORA'IING- MACHINE Filed Aug. 6. 1941 3 Sheets-Sheet 5 2 9 7 $4 WM Z; L

Patented Oct. 5, 1943 UNITED. STATES PATENT OFFICE .PERFORATING MACHINE Edward G. Rix, Chicago, Ill., assig'nor to Ameri-' can Perforator Company, Chicago, 111., a cor poration of Illinois "Applioation August 6,1941, Serial No. 405,689 7 17 Claims.

My invention relates to perforating machines of a type having wide application, such as .can-.

ceiling checks, dating labels, dating incoming mail, numbering work and job tickets, and other uses where-a number of papers are to be marked at one time.

One of the objects of my invention isfto provide a perforatingmachine which does notv require the services of 'a skilled mechanic in dis-v assembling and making minor repairs.

A further object of my invention'is' to provide a perforating machine designed for interchangeability of parts. I

A further object of my-invention is'to provide an arbor assembly which largely eliminates the use of screws and dowels in puttingfto'gether the various parts of the assembly} p A further object of my invention is to provide a perforating machine inQwhichthe headf: part of the casting fits down on the punch h'old-,

er, thus insuring its rigidity during the stripping action. l v

A further object of my invention isto provide a punch holder in which the stripper part is cast in one piece. a

A further object of my invention is to provide a perforating machine in which themounting bosses of the die shoe are in the rear of the punches, thereby allowingmore hand room when feedingpapers to the machine.

A further object of my invention is to provide a rectilinearly movable arbor controlled in its sliding. movement'by'bell crank apparatus on both sides of the arbor.

A further object is to provide the arbor with Fig. 4 is anend view of they arbor assembly; I

Fig. 5 is a plan view of the punch holder; Fig. 6 is an exploded perspective view of one of the punch controlling rings;

Fig. '7 is a perspective view of. a force block;'

and

'1. Fig. Bis apla'n View of the arbor.

Referring "nowto the drawings in detail, the construction shown comprises abase or frame I having upper and lower spaced jaws 2 and 3, a 'die' shoe ,4 secured to this base in the space between the jaws, a-punch holder 5 secured to the die shoe and held against lifting movement by engagement of bosses 6 on the upper jaw with the upper face of the punch holder, an arbor aplurality of punch controlling rings 8' rotatably mounted on'this arbor, a pair of index rings 9 between which the controlling rings 8. are

mounted, a pair of combination cheek and lifter plates ii) for holding the rings in place on the arbor against lateral movement and for lifting. the lifter plate II, a pairof gib slides l2 secured.

to the cheek plates 10, "respectively,and slidably mounted in vertical guideways l3 in the cheek members l4 of the base, a pair of force plates l5, for controlling certain of the punches, the cheek platesv l0 and arbor 1 having registering openingsa pair of antifriction bearings l5a between which. the arbor-,1 and cheek plates 10 are arranged, means for reciprocating these bearings transversely of their axes to efiect sliding movement of the gib slides I2 in the vertical .guideways l3, and an actuating shaft I6 mounted in these bearings and extending through the registering'openings in the cheek plate and arbor. As the gib plates l2 are rigidly secured to the. cheek plates Hi, they serve to hold the, cheek plates against rotation. The cheek plates l0 areprovided with positioning means, for holding the arbor I and index rings 9 against rotational movement, and also with positioning means for holding the force plates l5 against movement transversely of the axis of the arbor. These positioning means are readily engageable' and" disengageable ,by lateral movement of the cheek plates with respect to the arbor, index rings,

and force plates. Thepositioning means. for the force blocks I5 comprise laterally extending lugs 57 on the force blocks which engage correspondin ly shaped holes in the cheek plates. positioning means for preventing relative rotation between the cheek plates, the arbor 1 and index rings 9 comprise bosses l8 and i9 pressed up fromthe material of the cheek plates and engaging corresponding recesses in the lateral faces of the arbor and index rings.

With this construction, the assembly of the arbor, punch controlling rings, index rings, force blocks, and cheek plates, prior to placing the subasse-mbly in position, may be accomplished, by positioning'one of the cheek plates'on the' arbor,

The

the arbor and index ring, and so that the'laterally extending bosses l'l on the force blocks will engage the corresponding holes inthe cheek plate. This subassembly can then be placed between the cheek members l4 on the frame I of the machine, the lower ends of the gibs l2 on the cheek plates being entered into the vertical guideways I3 in the cheek membersof the frame and the subassembly being slipped downwardly until the aligned central openings in thehub 20 of the arbor, the cheek plates [0, and gibs 12 are in alignment with the openings in the antifriction bearings 15a. The actuating shaft si then ns rted so a to ex e d r u the registering openings in the antifrlctionbearings, gib slides, cheek plateaand arbors. The actuatingshaft is then secured in place by means of washers 2| fitting against theends of the antirie ion bearin s I51; and h d i pla y means of screws 22 threaded into the ends of the shaft.

' For 'efiecting the rectilinear. up-and-down DQVfiment of the arbor assembly, the antifriction bearings Ilia are mounted in bell crank members 23, one arm 24, of each bell crank being pivetel yvs eur d at 2, to oneend of a sw n n link. 2 51;, the other end of, which is ro' k mounted on a fixedpivot pin 26 securedto a cheek m mber o the frame, t other 21 O eaohibell crank being pivotally secured at 28 to oneend of a link 28 secured at 30 to a crank 31 mounted on a rock shaft 32 which is actuated by Y theactuatlng lever 33 secured to thisro'ck shaft. In order to limit the up-and-down movement of Q hsends or thes s ots .35 with th pin r ss.

suitable dowels 45 being provided to position the parts definitely. The assembly of punch holder and die shoe is rigidly secured to the frame by means of screws 46 extending through openings in the die shoe and threaded into the frame. The two rear screws d6 extend through ears 4! extending laterally from the die shoe and are threaded into registering openings in cars 48 on the frame. These ears are located rearwardly of the punches out of the way of the hands of the operator in feeding papers to the machine.

, in making the punch holder, a casting is made having a. pocket 49 in its upper side, into which .is poured around the pins.

melted babbitt may be poured. In making the castingxi-n which the pocket is formed, a slight upwardflar'e of the pocket has to be made in order that the pattern used in making the mold may, be readily withdrawn from the mold used in making'the casting. In order to hold the melted babbitt in this outwardly flaring pocket, anchorage means mus b provi ed wh ch. h the babbitt, the pocket; For this purpose a numberje screws 59 are hreaded int tapp d holes n th pun h h der o hat wh n the bitt EI ispoured'into thepocket, the heads of these screws will be held in the babbitt and will eld he bb tt firm y in plac when it s difi ei re pouring h e bi t i to the poc et, the

bottom52 of thepocket is drilled, as at 53, to

provide properly arranged guides for the punches 54.. Also, beforepouring the babbitt, pins are inserted into these drilled holes and the babbitt After the babbitt solidifies, the pins are withdrawn, leaving the aligned opening in the babbitt and bottom of thepunchholder These hole are then reamed out slightly'to'proyide a smooth bearing for the punches which; are thereafter inserted. The punchesthernselves are provided with enlargements 5,5 WhlChQ8dQ engaged by the lifter plate *ll fgr rallsing the punches as the plate is raised.

bar 34 determines the range of movement ofthe' arbor assembly. In order ,to return the arbor" assembly to its raised position, after the lever 33 has been moved downwardly, and forwardly to effect the punching operation, a pair of 0011 tension springs 36 are provided, each having one end hooked over the cross bar 34 and the other end secured to a screw ,31 extending through an ear 38 onthe side of the link 29. This screw 3'! aybe adjusted to secure the desired tension in thespring 36 by means of a. nut 39 threaded on the end of the screw and engaging the ear 38. The connection between the lifter plate I l and the lifter cheeks I0 is effected by means of downward'extensions 40 on the lifterv cheeks having inwardly turned fingers At on which the lifter plate rests and having also inwardly extending fingersfll above the lifter plate for forcing it downwardly as the arbor moves downwardly. The lifter plate extends laterally on both sides beyond the sides of the upper punch guide 43, as shown inFig. v3, so that the assembly of punch holder anddie shoe can be slipped into place after the arbor assembly has been placed and secured inposition in the frame. I

Th lpuneh ho der 5 s i idly s u ed t the die [by means of screws 44 extending through he P 1 911 hol er a dth eaded in o t die ho A suitable receptacle 56 is provided in the bottom of the frame to receive the punchings which are forced'through the holes in the die plate 5? and'fall down through the openings 58 into this ripheral portion 59 connected with the hub portionby suitable'webs or spokes 68, The cylindrical peripheral portion is provided with a series of circumferentially spaced parallel troughs 8| in its outersur face extending longitudinally of the "axis of the arbon'and each of the punch controlling rings8 carries a spring-pressed detent successively engageable .withsaid troughs iii for retaining, the rings intheir desired adjusted position to bring the desired portion of the punch controlling ringin registration with the 'set of punches controlled thereby. Each of these spring-pressed detents comprises a roller 62 having spaced roller portions 63 for engagement with the troughs 6!, and a'neck portion 64 connecting these roller portions, forced toward the grooves in the arbor by means of a Wirespring 65 mounted in the ring 3. This wire spring comprises two connected "coil torsion springs and a portion 61 extending from each torsion spring engaging the neck portion 64 of the roller. Each ring comprises a main portion 68 recessed at 69 to receivethe spring and notched at 10 to receive oneroller portion 53, and an arcuate portion, ll secured to the main portion and covering the spring recess 69'and notched at FE-to receive the other roller portion 63. The spring is held in place in the recess by means of a pair-of pins 73 extending from the main ring portion into openings 14' in the arcuate covering portion; This covering portion may, for convenience'in manufacture, be made up of a number'of laminations and may be secured to the main ring portion by means of pins 15 extending through holes 16 in these laminations and into registering holes in the main ring portion.

The punch controlling rings 8 may be used with the central set of punches for selectively controlling these punches to produce different characters. The force plates l may be used to control the front and rear sets of punches which do notin generalhave to be selectively controlled. For example, the central set of punches may be used for dates which have to be changed from time to time; andthe front and rear sets of punches which are not as a rule changed may be used for making paid perforations, or the like.

As indicated above and as shown inl ig.

the two outermost rings 9. on the arbor may be indexed rings, as distinguished from punch control rings, and may be held against rotation with respect to the arbor by nieansof projections on the check plates extending into holes in the index rings. The index rings "maybeprovided with indicia with which the figures or characters on the punch controlling rings may be aligned transversely to secure the'i prcper' positioning" of the punch controlling. perfora- V tions in the rings. I, g

In order to limit the movement of the punch controlling rings, a stopba'r ll :is pre vided, say cured 'to ears 1.3 extending upwardly from the cheek plates. This bar is engageable by the operating pins or handles 18 on the ringstc limit the range of movement of the rings in ne direction. The m'cvement of the rings theopposite directionis limited by the engagement of the frame when the lever33 is moved downwardly to eifect a perforating operation, the frontfoot 8! of the base on the operating lever side of the machine may extend later-ally some distance 50 that the base will be supported on both sides of the plane oftravel ofthe lever.

As indicated above, in assembling the machine, the punch holder and die set assembly may be put together and the arbor assembly'may be put together and mounted'in the frame, and the punch holder and die assembly may then be put in place in the frame, the lifter plate H sliding into place between the lower lifting fingers 4 l and inserted into the space between the punch holder- 5 and the die plate 51. i The actuating lever is then moved downwardly and forwardlyuntil the upper edge of the slot 35'strikes against the crossbar 34. This causes a rectilinear downward sliding movement of the gibs'I2-inthevert1cal= pins 19 with the upper edge Siloi the iorce plate 45 In order to prevent possible tipping hither guideways. :This moves the gib-carrying cheek plates l0 downwardly, carrying with them the arbor, punch controlling rings,;and force plates. This effects the desired operation of the punches. It will be noted that the movement of the punch controlling rings and force plates is a rectilinear movement longitudinallyof'the punches so that there is 'no' skewing or side thrust of thezpunch'es.

After the" punching operation has been performed, the lever is released, whereupon the coil tension springs'36 pull on-the links 29 until the lower edges of the slots '35 engagethe crossbar 34. This will raise the'arbor assembly/and. punches, ready for another operation. operation of the bell crank lever 23, the bell crank fulcrums about the axis of the shaft. l6

"-on'which the arbor 1 is'mounted, and as this shaftis mounted in the rectilinearly'movable cheek plates Hi, the movement of the actuating shaft I 6 is also a rectilinear movement trans- In this vertical movement versely of its axis. of the fulcrum of the bell crank,the link'fic, which is pivotally connected to the lower arm 24 ofthe bell crank, will rock slightly'about its fixed pivot to allow the vertical movement of the shaftI6. i U

Further modifications will be apparent to those skilled in the art and it is desired, therefore, that the invention be limited -'only by the scope of the appended claims. I

' Having thus described by invention, what I claim and desire to secureby-Letters Patent is: 1. A perforating machine comprising a punch. holder, a plurality of punches slidably mounted in said holder; a lifter plate for said punches, an

arbor, a plurality :of punch-controlling'ringsrotatably mounted on said arbor, a pair of combi nation cheek plates and plate-lifter members for holdingsaid rings against lateral movement'on I said arbor and for'lifting'the lifter plate, a pair of gib slides securedto said cheek plates, respectively, rectilinear guidesdor said slides, a force cheek plates against rotation and axial move .ment, said cheek plates having positioning means for holding the arboragains't rotational move-' ment and having positioning means for holding the force plate against transaxial movement, said positioning means being readily .engageable and disengageable by lateralmcveinent of the cheek plates with respect to said arbor and force plate; 2. A perforating machine comprising a punch holder, a plurality of punches slidably'mounted in said holder, a hollow cast arborhaving a central hub portion and acylindrical peripheral portion spaced from said hub portion and supported thereby, an actuating shaft extending through said hub portion and reciprocable transversely of its axis for effecting movement of the arbor, and

plurality of punch controlling ringsrotatably mounted on said arbor, said arbor having a series" of circumferentially spacedparallel troughs in its outer surface extending longitudinallyof the axis of the arbor, each ring carrying a spring pressed detent successively engageable with said troughs, and said arborbeing provided'with a groove in its outer periphery extending longitudinally of the axis'ofthe arb'or for receiving-the ends of the punches which have passed through the rings. 1

., 3.. Anarbor and ring assembly for a perforat ing machine comprising a cylindrical arbor and a punch controlling ring rotatably mounted thereon, said arbor having aseries of circumferentially spaced paralleL-notohes in its.outer surface, said ring carrying a spring-pressed de-- tent successively engageablewith saidv notches,

guiding the roller portions in their radial movement.

. 4. An arbor and'ringassembly for a perforating machine comprisin-ga cylindrical arbor and a punch controlling ring rotatably mounted thereon, said arbor having a series of circumferentially spaced parallelnotches in its outer surface, said ring carrying a spring-pressed detent successively engageable with said notches, said detent comprising a roller having spaced roller portions for engagement with said notches and a neck portion connecting said roller portions, and a spring engaging said neck portion, said ring having an inwardly opening notch for guiding the roller portions in their radial movement and being recessed to receive said spring. 5. An arbor and ring assembly for a perforating machine comprising a cylindrical arbor and a punch controlling ring rotatably mounted thereon, said arbor having a series of circumferentially spaced parallel notches in its outer surface, said ring carrying a spring-pressed detent successivelyengageable with said notches, said detent comprising a roller having spaced roller portions for engagement with said'notches:

, ment and being recessed to receive said spring,

said spring comprising a wire bent to form two movable bearing means on which said arbor is mounted comprising a shaft extending through and coaxial with said arbor, means for guiding said arbor and shaft for rectilinear movement toward and from the punches, and means for effecting the rectilinear movement of said shaft comprising a pair of bell cranklevers on opposite sides of said arbor having their intermediate portions fulcrumed about the axis of said shaft, a pair of links, each having one end rockable about a fixed axis and itsother end pivotally secured to an arm of one of said bell cranks, and a pair of links, one pivotally secured to each of the other arms of said bell cranks,

8. A perforating machine comprising a punch holder, a plurality of punches slidably mounted in said holder, an arbor, a plurality of punch controlling rings rotatably -mounted on said connected coil'torsion springs, and a portion ex-.

a punch, controlling ring rotatably mounted,

thereon, said arbor having a series'of circumferentially spaced parallel notches in its outer surface, said ring carrying a spring-pressed detent successively engageable with said notches, said detent comprising a roller having spaced roller portions for engagement with said notches and a neck portion connecting said roller portions, and a spring engaging said neck portion, said ring having aninwardly opening notch for guiding the roller-portions in their radial movement and being recessed to receive said spring, said spring comprising a wire bent to form two connected coil torsion springs, and a portion extending from each torsion spring engaging the main portion recessed to receive the spring and notched to receive one roller portion, and a ring portion secured to said main portion covering the spring recess and notched to receive th other roller portion.

7. A perforating machine comprising a punch holder, apluralityof punches slidably mounted arbor, movable bearing means on which said arbor is mounted comprisinga shaft extendin throughand coaxial with said arbor, means for guiding said arbor and shaft for rectilinear movement toward and from the punches, and means for effecting the rectilinear movement of said shaft comprising a pair of bell crank levers on opposite sides of said arbor having their intermediate portions fulcrumed about the axis of said shaft, 3. pairof links, each having one end rockable about a fixed axis and its other end pivotally secured to an arm of one of said bell cranks, a pair of links, one pivotally secured to each of the other arms of said bell cranks, and means for actuating said last pair of links'comprising a rock shaft and an actuating lever secured to said rock shaft. r

v 9. A perforating machine comprising a punch holder, a plurality of punches slidably mounted in said holder, an arbor, a plurality of punchcontrolling rings rotatably mounted on said arbor, a pairofcheek plates for holding said rings against lateral movement on said arbor, a pair of gib slides secured to said check plates, respective ly, rectilinear guides for said slides, said check plates and arbor having registering openings, 21 pair ofbearings between which the arbor and cheek plates are arranged,.means for reciprocating said bearings transversely of their axes, and an actuating shaft mounted in said bearings and extending through said registering openings, said gib plates serving to hold the cheek plates against rotational and axial movement-said cheek plates having positioning means for holding the arbor against rotational movement, said positioning 657 neck portion of a roller, said ring comprising a means being readily engageable and disengageable by lateral movement of the cheek plates With respect to said arbor.

10. A perforating machine having upper and lower relatively stationary jaws, a punch holder and die shoe assembly fitting snugly between said jaws, said punch holder and die shoe assembly having an open sheet-receiving throat between the punch holder and die shoe and having en aging faces in the rear of the rear end of the throat, and means in the rear 'of the rear end of the throatfor clamping the punch holder and die shoe together, said upper jaw engaging said punch holder forwardly of the rear of said throat.

11. A perforating machine having upper and lower relatively stationary jaws, a punch holder and die shoe assembly fitting snugly between said jaws, said punch holder and die shoe assembly having an open sheet-receiving throat between the punch; holder and die shoe and having engaging faces in the rear of the rear end of the throat, means in the rear of the rear end of the iolder, a plurality of punches slidably mounted throat for clamping the punch holder and die shoe together, said upper jaw engaging said punch holder forwardly of the rear of said throat,

means for securing said die shoe to the lower jaw comprising lugs extending laterally from the die shoe below the plane of the throat and in the rear of the rear end of the throat, and fasteners extending through said lugs and secured to v the lower jaw.

12. An arbor and ring assembly for a perforating machine comprising a single casting includinga cylindrical -hollow shell, hubs at opposite ends of the shell and spokes connecting the hubs with the hollow shell, said shell having a series of circumferentially spaced parallel troughs in its outer urface extending longitudinally of the axis of the cylindrical shell, and a plurality of punchcontrolling rings rotatably mounted on said shell, each ring carrying a spring-pressed detent successively engageable with said troughs.

3.0. An arbor and ring assembly for a perforating machine comprising a single casting including a cylindrical hollow shell, hubs 'at opposite ends of the shell and spokes connecting the hubs viith the hollow shell, said shell having aseries of circumferentially spaced parallel troughs in its outer surface extending longitudinally of the axis of the cylindrical shell, and a plurality of punch-controlling rings rotatably mounted on said shell, each ring carrying a spring-pressed detent successively engageable with said troughs, said shell being provided with a groove in its outer periphery extending longitudinally of the axis of the arbor for receiving the ends of the punches which have passed through the ring.

14. A perforating machine comprising a punch holder, a plurality of punches slidably mounted said holder, an arbor, a plurality of punch controlling rings rotatably mounted on said arbor, movable bearing means on which said arboris mounted comprising a shaft extending through and coaxial with said arbor, means for guiding said arbor and shaft for movement toward and from the punches, and means for eifooting the movement of said shait'comprising span of bell crank levers on opposite sides of said arbor having their intermediate portions iulcrumed about the axis of said. shaft, a pair of links, each having one end rockable about a fixed axis and its other end pivotally secured to an arm of one of said bell cranks, and a pair of links, one pivotally secured to each of the other arms of said bell cranks.

15. A perforating machine comprising a punch in said holder, an arbor, a plurality of punch controlling rings rotatably mounted on said arbor, movable bearing means on which said arboris mounted comprising a shaft extending through said arbor, means for guidingsaid arbor and shaft for movement toward and from the punches, and means for effecting the movement of saidshaft comprising a pair of hell crank levers on opposite sides of said 'arbor having their intermediate portions fulcrumed about the axis of said shaft, a pair of links, each having one end rockable about a fixed axis and its other end pivotally secured to an arm of one of said bell cranks, and a pair of links, one pivotally secured to each of the other arms of said bell cranks.

16. A perforating machine comprising a punch holder, a plurality of punches slidably mounted in said holder, an arbor, a plurality of punch controlling rings rotatably mounted on said arbor movable bearing meanson. which said arbor is mounted comprising fuicrumsextending laterally from the ends of said arbor, means for guiding said arbor and fulcrums for movement toward and from the punches, and means for effecting the movement of said shaft comprising a pair of cell crank levers on opposite sides of said arbor having their intermediate portions fulcrumed" Q on said fulcrums, a pair of links, each having one end rockable about a fixed axis'and its other end pivotally secured to an arm of one of said 5 movement of said shaft comprising a bell crank lever on one side of said arbor having its intermediate portion fulcrumed on said fulcrum, a

' link having one end rockable about a fixed axis and its other end pivotally secured to an arm of one of said bell crank levers, and a link pivotally secured to the other arm of said bell crank lever.

EDWARD G. RIX. 

